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GPU: Floating point screen coordinates to eliminate vertex snapping

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This commit is contained in:
ln
2019-10-25 04:34:28 +03:00
committed by Adam
parent d56951e6d7
commit 25c81187df
3 changed files with 19 additions and 19 deletions
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6
runelite-client/src/main/resources/net/runelite/client/plugins/gpu/common.glsl
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@@ -74,9 +74,9 @@ bool face_visible(ivec4 vA, ivec4 vB, ivec4 vC, ivec4 position, int cameraYaw, i
vB += position - cameraPos;
vC += position - cameraPos;
ivec3 sA = toScreen(vA.xyz, cameraYaw, cameraPitch, centerX, centerY, zoom);
ivec3 sB = toScreen(vB.xyz, cameraYaw, cameraPitch, centerX, centerY, zoom);
ivec3 sC = toScreen(vC.xyz, cameraYaw, cameraPitch, centerX, centerY, zoom);
vec3 sA = toScreen(vA.xyz, cameraYaw, cameraPitch, centerX, centerY, zoom);
vec3 sB = toScreen(vB.xyz, cameraYaw, cameraPitch, centerX, centerY, zoom);
vec3 sC = toScreen(vC.xyz, cameraYaw, cameraPitch, centerX, centerY, zoom);
return (sA.x - sB.x) * (sC.y - sB.y) - (sC.x - sB.x) * (sA.y - sB.y) > 0;
}

6
runelite-client/src/main/resources/net/runelite/client/plugins/gpu/geom.glsl
View File

@@ -60,9 +60,9 @@ out float fogAmount;
void main() {
ivec3 cameraPos = ivec3(cameraX, cameraY, cameraZ);
ivec3 screenA = toScreen(vPosition[0] - cameraPos, cameraYaw, cameraPitch, centerX, centerY, zoom);
ivec3 screenB = toScreen(vPosition[1] - cameraPos, cameraYaw, cameraPitch, centerX, centerY, zoom);
ivec3 screenC = toScreen(vPosition[2] - cameraPos, cameraYaw, cameraPitch, centerX, centerY, zoom);
vec3 screenA = toScreen(vPosition[0] - cameraPos, cameraYaw, cameraPitch, centerX, centerY, zoom);
vec3 screenB = toScreen(vPosition[1] - cameraPos, cameraYaw, cameraPitch, centerX, centerY, zoom);
vec3 screenC = toScreen(vPosition[2] - cameraPos, cameraYaw, cameraPitch, centerX, centerY, zoom);
if (-screenA.z < 50 || -screenB.z < 50 || -screenC.z < 50) {
// the client does not draw a triangle if any vertex distance is <50

26
runelite-client/src/main/resources/net/runelite/client/plugins/gpu/to_screen.glsl
View File

@@ -26,22 +26,22 @@
/*
* Convert a vertex to screen space
*/
ivec3 toScreen(ivec3 vertex, int cameraYaw, int cameraPitch, int centerX, int centerY, int zoom) {
int yawSin = int(65536.0f * sin(cameraYaw * UNIT));
int yawCos = int(65536.0f * cos(cameraYaw * UNIT));
vec3 toScreen(ivec3 vertex, int cameraYaw, int cameraPitch, int centerX, int centerY, int zoom) {
float yawSin = sin(cameraYaw * UNIT);
float yawCos = cos(cameraYaw * UNIT);
int pitchSin = int(65536.0f * sin(cameraPitch * UNIT));
int pitchCos = int(65536.0f * cos(cameraPitch * UNIT));
float pitchSin = sin(cameraPitch * UNIT);
float pitchCos = cos(cameraPitch * UNIT);
int rotatedX = ((vertex.z * yawSin) + (vertex.x * yawCos)) >> 16;
int rotatedZ = ((vertex.z * yawCos) - (vertex.x * yawSin)) >> 16;
float rotatedX = (vertex.z * yawSin) + (vertex.x * yawCos);
float rotatedZ = (vertex.z * yawCos) - (vertex.x * yawSin);
int var13 = ((vertex.y * pitchCos) - (rotatedZ * pitchSin)) >> 16;
int var12 = ((vertex.y * pitchSin) + (rotatedZ * pitchCos)) >> 16;
float var13 = (vertex.y * pitchCos) - (rotatedZ * pitchSin);
float var12 = (vertex.y * pitchSin) + (rotatedZ * pitchCos);
int x = rotatedX * zoom / var12 + centerX;
int y = var13 * zoom / var12 + centerY;
int z = -var12; // in OpenGL depth is negative
float x = rotatedX * zoom / var12 + centerX;
float y = var13 * zoom / var12 + centerY;
float z = -var12; // in OpenGL depth is negative
return ivec3(x, y, z);
return vec3(x, y, z);
}